Philip Reeve is a British author and illustrator of children's books, primarily known for the 2001 book Mortal Engines and its sequels (the 2001 to 2006 Mortal Engines Quartet). His 2007 novel, Here Lies Arthur, based on the legendary King Arthur, won the Carnegie Medal.

Philip Reeve was born and raised in Brighton, where he worked in a bookshop for a number of years while also co-writing, producing, and directing a number of no-budget theatre projects. He then began illustrating and has since provided cartoons for around forty children's books, including the best-selling Horrible Histories, Murderous Maths, and Dead Famous series.

His notable works include the Mortal Engines Quartet and the Larklight Trilogy. Reeve's novel Railhead, published by Oxford University Press, was released in the UK in October 2015. Pugs of the Frozen North, written with Sarah McIntyre, is also among his popular works.